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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8008519

Type

Invention Patent

Filing

12/23/1980

Publication

-

Progress at the INPI

  1. Filing12/23/80
  2. Publication
  3. Examination08/16/83
  4. Allowance01/24/84
  5. Grant05/29/84
  6. Expired03/19/96

The letters patent expired on 03/19/1996: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/29/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

International Business Machines Corporation. [us]

US

Inventors

S. R. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/29/1984

RPI 710

Notificação para pagamento de retribuição

#13.1

05/02/1984

RPI 706

Deferimento

#9.1

01/24/1984

RPI 692

Solicitação de exame técnico

#4.1

08/16/1983

RPI 669

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

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